ProCharger Intercooled Supercharger - Supercharged!

19. The backing plate was mounted to the throttle body and a K&N air filter was installed followed by the air cleaner cover.

20. Next, the intake assembly was attached to the intercooler via the silicone rubber hoses and clamps and the installation neared completion.

21. To make room for the intercooler, Walt relocated the horn with the provided bracket to sit a bit lower between the frame's downtubes above the regulator.

22. The intercooler was mounted next. It was bolted to the gas tank mounts and fits underneath the neck gusset.

23. Walt and Ed snugged up all of the hose clamps from the air cleaner bonnet, to the intercooler, to the supercharger and then the surge valve was hooked up.

24. Here's a shot of the surge valve after it was installed. It is operated by vacuum or boost, and allows boost to be bypassed from the engine during normal riding conditions (idle, cruising) so that the bike delivers normal cruising feel, fuel economy and drivability. The surge valve is normally open. Once the engine senses load however and the engine goes from a normal vacuum situation to boost, the valve instantly closes and allows the boost into the throttle body. Upon deceleration, the valve opens again so that excess boost isn't backed up in the engine.

24. Here's a shot of the surge valve after it was installed. It is operated by vacuum or boost, and allows boost to be bypassed from the engine during normal riding conditions (idle, cruising) so that the bike delivers normal cruising feel, fuel economy and drivability. The surge valve is normally open. Once the engine senses load however and the engine goes from a normal vacuum situation to boost, the valve instantly closes and allows the boost into the throttle body. Upon deceleration, the valve opens again so that excess boost isn't backed up in the engine.

26. Here is the new supercharged Rocker C ready to tear up any street it rolls down.

27. And this is how the ProCharger system faired on the dyno. The baseline run produced 67.80 hp and 83.86 lb-ft of torque. After the supercharger was installed, a whopping 121.35 hp and 105.85 lb-ft of torque were achieved, which is a gain of 53.55 hp and 21.99 lb-ft or torque. No wonder this setup won Performance Product of the Year at the V-Twin Expo. It's the real deal!